That's the first thing that my daughter was taught at RSM when she went in for 5th grade math - Algebra. They also start you with geometry in the 6th grade. I think they start Algebra a lot younger actually - maybe 2nd or 3rd grade. When I spoke to the principal of the my local RSM she said the earlier you start the better it is.

Edit:- They get homework they need to turn in. Early on I had to spend sometime with my daughter to help her cope. But once she had her concepts down its been pretty smooth sailing.